it all depends on who you ask and what you are looking for
I would think that the most luxurious car is the Lincoln Navigator.
i think the bugatti veyron 16.4 version is the most luxurious car in the world...
buggati veyron is 500.0000 dollars
i think it is a rolls-royce
the maserati granturismo is the worlds most respected car - understated, yet original and exclusive. not showy, but beautiful.
Porsche
BMW
The most luxurious model of Chrysler's K-Car was their 2-door convertible or their 2-door coupe. The engine sizes for these cars were the 3.3L EGA V6 and the 3.8L EGH V6.
Its the bugatti royale
Toyota Corolla
It would be hard to beat the Bentley Continental for pure luxury but the Maybach 62 is about as luxurious as you could get if you have the over $1 million dollars to purchase it.
Road legal, stiock car, i believe a Bugatti Veyron